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Lennox G40UH-36A-045 Air Pressure Switch
The job of the air pressure switch is to sense whether the blower fan is doing what it is supposed to do. An air pressure switch is part of a small, but important collection of aspects of the whole safety system that is intended to keep you safe. Various air pressure switches may have a reset feature that is manual, which makes you reset it by hand or else the system will cease to function.
Warning Signs that the System Pressure Switch is in Need of Replacement
- Incorrect electrical voltage being read.
- The blower fan will not function properly.
- System does not achieve the desired temperature.
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